B57964S0202H000

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Temperature Sensors - NTC Thermistors

A NTC thermistor is an electronic component that is used to detect and measure temperature. It is composed of a ceramic disc, either of a porous or sintered, material that has been doped with a tiny amount of a metallic conductive substance. The ceramic material of a NTC thermistor is coated with an insulating layer such as a ceramic or glass coating. This insulating layer insulates the thermistor from the external environment, allowing it to respond only to changes in temperature and not to changes in pressure or other environmental influences.

The B57964S0202H000 thermistor is a type of NTC thermistor. It is a two lead component with a resistance range of 2200 ohms at 25 °C. This thermistor is also known by other names such as NTC-RJ, the 2200Ω6 thermistor, and the FK4 series thermistor depending on the manufacturer. This type of temperature sensor has a high sensitivity to temperature changes since it has a low thermal coefficient of resistance (TCR). It also has a high self-resistance (around ten times that of a Charge Coupled Device).

Application Fields

B57964S0202H000 thermistors are used in a wide variety of applications ranging from the automotive industry, industrial applications, and consumer applications. They are used for temperature sensing in environmental control systems, auto engine cooling systems, solid state lighting, medical equipment, and household appliances. Furthermore, they can be used as over-temperature switches, temperature compensation elements, and humidity sensors.

Working Principle

NTC thermistors work on the principle of thermistor resistance. As the name implies, the resistance of a NTC thermistor is not constant and changes due to changes in temperature. Moreover, the greater the temperature, the lower the resistance value. As temperature rises, electrons move more freely through the thermistor, further lowering the resistance value. This is because at higher temperatures, electrons move more freely and the thermistor’s internal resistance is reduced. Conversely, when the temperature drops, the thermistor’s resistance increases.

The B57964S0202H000 thermistor has an operating temperature range from -40 °C to 150 °C and a working voltage of 24V. It also has a very low temperature coefficient of 2050 ppm/°C and a thermal response time of less than 20 seconds. This thermistor is used in a variety of applications, such as temperature controllers, over-temperature alarms, temperature compensation elements, and humidity sensors.

Conclusion

The B57964S0202H000 thermistor is an electronic component that is used to measure temperature. It is composed of a ceramic disc, either of a porous or sintered material, that is doped with a metallic conductive substance and coated with an insulating layer such as a ceramic or glass coating. This thermistor has a high sensitivity to temperature changes since it has a low TCR and a high self-resistance. It is used for temperature sensing in environmental control systems, auto engine cooling systems, solid state lighting, medical equipment, and household appliances. Working on the principle of temperature-dependent resistance, this thermistor has an operating temperature range from -40 °C to 150 °C and a working voltage of 24V.

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